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4 votes
5 answers
2k views

Why is it so much easier to fall when walking down a slope?

When I walk uphill on an icey road, I almost never slip/fall. But if I walk downhill or even on a relatively flat road, I slip/fall frequently. What is the physics reason behind this, and are there ...
Mike L.'s user avatar
  • 57
0 votes
2 answers
601 views

Stability on a bus

I ride the bus from home to school and vice versa approximately 3-4 times per week for an hour each time. The bus is either bi- or tri-articulated, and it can accelerate to speeds up to 80km/h. Most ...
David Espinel's user avatar